package top.lcm889.oj.leetcodeTop200;

import java.util.*;

/**
 * @author Coder-lcm
 * @date 2021/4/10
 */
public class LC17_电话号码的字母组合{
    public Map<Character,String> map = new HashMap<>();
    {
        map.put('2',"abc");
        map.put('3',"def");
        map.put('4',"ghi");
        map.put('5',"jkl");
        map.put('6',"mno");
        map.put('7',"pqrs");
        map.put('8',"tuv");
        map.put('9',"wxyz");
    }

    public List<String> letterCombinations(String digits) {
        if (digits.length() == 0) return new ArrayList<>();
        char[] chars = digits.toCharArray();
        List<String> res = new ArrayList<>();
        Queue<Character> queue = new LinkedList<>();
//        queue.offer(chars[])
        return null;
    }

    public static void main(String[] args) {

    }
}
